{
 "kind": "active_region",
 "date": "2026-10-27",
 "built_utc": "2026-10-27T09:01:32+00:00",
 "rows": 6623,
 "bytes": 278350,
 "sha256": "786e4993b6182f031025525163bd7831244d2243b9440cc283d9089c22f86ea1",
 "columns": [
  {
   "name": "slot_id",
   "dtype": "String"
  },
  {
   "name": "kind",
   "dtype": "String"
  },
  {
   "name": "name",
   "dtype": "String"
  },
  {
   "name": "start_utc",
   "dtype": "String"
  },
  {
   "name": "end_utc",
   "dtype": "String"
  },
  {
   "name": "lat",
   "dtype": "Float64"
  },
  {
   "name": "lon",
   "dtype": "Float64"
  },
  {
   "name": "n_obs",
   "dtype": "Float64"
  },
  {
   "name": "region_number",
   "dtype": "Float64"
  },
  {
   "name": "first_report",
   "dtype": "String"
  },
  {
   "name": "last_report",
   "dtype": "String"
  },
  {
   "name": "n_spotted_days",
   "dtype": "Float64"
  },
  {
   "name": "n_plage_days",
   "dtype": "Float64"
  },
  {
   "name": "first_location",
   "dtype": "String"
  },
  {
   "name": "last_location",
   "dtype": "String"
  }
 ],
 "slot_id_column": "slot_id",
 "time_column": "start_utc",
 "sorted_by": [
  "start_utc",
  "slot_id"
 ],
 "row_groups": "one per year",
 "span": {
  "start": "1996-01-01T00:00:00+00:00",
  "end": "2026-10-26T00:00:00+00:00"
 },
 "source_file": "event_storehouse/active_region/_manifest.parquet",
 "url": "https://data.terrapulse.info/dex/active_region/2026-10-27.parquet",
 "latest_url": "https://data.terrapulse.info/dex/active_region/latest.parquet",
 "family": "eventdex",
 "storage": "dossier",
 "n_slots_api": 6623,
 "sources": [
  "swpc_srs"
 ],
 "licence_basis": "Joint USAF/NOAA Solar Region Summary from SWPC's own Warehouse archive - US federal work, public domain by statute (17 U.S.C. 105); SWPC README attaches no use restriction, only the caveat that the archive holds the preliminary reports as originally published, which every slot states (2026-10-21).",
 "commercial_use": true,
 "cite": "TerraPulse (terrapulse.info) for the organizing; the sources above for the measurements, as their licence requires."
}